Update README.md

README.md

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@@ -1,8 +1,10 @@
+**This is a stable fork of https://github.com/mndrix/ps; it will not introduce breaking changes.**
+
 ps
 ==
 
-Persistent data structures for Go.  See the [full package documentation](http://godoc.org/github.com/mndrix/ps)
+Persistent data structures for Go.  See the [full package documentation](http://godoc.org/github.com/lann/ps)
 
 Install with
 
-    go get github.com/mndrix/ps
+    go get github.com/lann/ps